July 2016
Beginner to intermediate
462 pages
9h 14m
English
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Caching with a least recently used cache
Caching involves storing results, usually from a function call, in memory or on disk. If done correctly, caching helps by reducing the number of function calls. In general, we want to keep the cache small for space reasons. If we are able to find items in cache, we talk about hits; otherwise, we have misses. Obviously, we want to have as many hits as possible and as few misses as possible. This means that we want to maximize the hits-misses ratio.
Many caching algorithms exist, of which we will cover the least recently used (LRU) algorithm. This algorithm keeps track of when a cache item was used. If the cache is about to exceed its maximum specified size, LRU gets rid of the least recently used item. The ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.